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Descaling method, descaling equipment and descaling system

A kind of equipment and scaling technology, applied in the petroleum industry, refining hydrocarbon oil, etc., can solve the problems of not being able to completely remove scale, affecting oil production operations, and inconvenient dosing

Inactive Publication Date: 2014-05-21
YANGTZE UNIVERSITY +1
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Problems solved by technology

[0003] At present, there are three main methods for scaling treatment in gathering and transportation pipelines and equipment: chemical descaling method, that is, adding chemical agents to gathering and transportation pipelines and equipment, so that no scaling will occur during the transportation of crude oil production fluid, and its cost It is relatively high, it is inconvenient to dosing, and it cannot achieve the purpose of complete descaling. It only prevents scaling in the gathering pipelines and equipment, but the subsequent process equipment and pipelines will also scale. It is necessary to stop production regularly for pipelines and equipment Cleaning; magnetic anti-scaling method and electronic anti-scaling method, the anti-scaling time is short, and it is not a complete descaling, but the scaling site is moved to the joint station at the end of the process, the crude oil production fluid will still be transported for a certain distance Scaling, eventually requires regular chemical cleaning, affecting oil recovery operations

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  • Descaling method, descaling equipment and descaling system
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  • Descaling method, descaling equipment and descaling system

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Embodiment Construction

[0051] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0052] Such as figure 1 As shown, one aspect of the present invention provides a descaling method, the descaling method comprises making the liquid pass through a contact area of ​​10m at a flow rate of 0.001m / s~0.004m / s 2 ~30m 2 Fouling unit 2.

[0053] The descaling method of the present invention is to make the liquid (such as crude oil) containing scaling ions flow through the scaling unit 2, and the liquid is in full contact with the scaling unit 2 and the contact area reaches 10m 2 ~30m 2, when the liquid flows in the fouling unit 2, the flow velocity is 0.001m / s~0.004m / s, thus increasing the contact chance of barium strontium sulfate, calcium magnesiu...

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Abstract

The invention discloses a descaling method which comprises the step that a liquid flows through a scaling unit (2) with the contact area of 10-30m<2> at a flow rate of 0.001-0.004m / s. The invention further discloses descaling equipment and a descaling system. The descaling method can descale the liquids (particularly wet crude produced liquids), is low in cost and convenient to operate, and does not affect normal oil extraction operation.

Description

technical field [0001] The invention relates to the field of oil and gas gathering and transportation, in particular to a descaling method for descaling crude oil production fluid, descaling equipment and a descaling system. Background technique [0002] In the oil production system, the high-water crude oil production fluid produced from the oil well needs to be transported through a long pipeline. Since the water-containing crude oil production fluid contains various ionic components, the crude oil production fluid is transported through a single well pipeline During the process of transporting to the metering station and then to the combined station on the ground, due to changes in thermodynamic parameters such as external temperature and pressure, the scaling ions (such as Ca 2+ , Mg 2+ 、Ba 2+ 、Sr 2+ , CO 3 2- , SO 4 2- etc.) are precipitated to form barium strontium sulfate, calcium magnesium carbonate and other substances to scale, which makes the gathering and ...

Claims

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Application Information

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IPC IPC(8): C10G29/00
Inventor 尹先清范凤英付家新吴龙海陈武韩炜曹方启张子玉何理
Owner YANGTZE UNIVERSITY
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